Roller drier



Oct. 9, 1945. .A. H. BECKLEYLJR 2,386,286

' ROLLER DRIER I Filed March 2, 1942 4 SheetsSheet l ATTORNEY.

Ogt. 9, 1945. A. H. BECKLEY. JR

ROLLER DRIER Filed March 2, 1942 4 Sheets-Sheet 2 9, A. H. BECKLEY,-JR 2,386,286

ROLLER DRIER Filed March 2, 1942 4 SheetsSheet 3 W m i H 11 F m INVEN ATTORNEY.

Oct. 9, 1945. I A. H. BEckLEY, 'JR 8 ,2 ROLLER DRIER Filed March}, 1942 4 Sheets-Sheet 4' E INVENTOR. 10a

Patented st. 9, 1945 ROLLER DRIER Arthur H. Beckley, Jr., Portland, Oreg., assignor to The Moore; Dry Kiln Company of Oregon,

a corporation Application March 2, 1942,. Serial' No. 432,954

8 Claims.

My invention relates to improvements in roller driersin which work, such as veneer'er other flat material to be dried, is progressed between driven rolls on several decks simultaneously from: one. end of the drier to the other.

Due to the high temperature at which this drieroperates it is desirable that working parts of the drier be quickly and individually demountable.

An object-.of my invention is'to provide novel means for mounting the rolls, coil heaters; and roll bearing in relation todoors so they are quickly and individually demountable without disturbin the other parts of the drier.

Another object of my invention is to provide: a quickly demountable construction to aid in cleaning out and repairing the drier.

What constitutes my invention hereinafter will. be. described in detail and succinctly defind in the appended claims. 1

In the accompanying drawings wherein my invention is illustrated in preferredtormof em=- bod'iment,

Figure I is aside elevation of a drier con-- structed in accordance with this invention.

Figure II is. a plan view of the drier shown in Figure I.

Figure III is a partial cross section along the: lines IIIIII of Figure I.

Figure V is a partial horizontal cross section. of a door with its frame showing a hinge and door latch.

Figure V is-v a diagrammatic perspective draw-- i-ng showing the arrangement of bearing plates-in relation to the frame and the drier sections.

Figure VI is a side elevation of the frame anchor, enlarged to show the details.

Figure VII is a partial side elevation on an enlarged. scale, showing a portion of the drier, with part of the door cut away to show details of the interior construction.

Figure VIII is a partial plan view of a drier'cjoil with headers cut away to show the steam flow through the coil.

Figure IX is av partial section along the lines XI II-XIII of Figure VII showing the bearing plate, bearing'anddrive in detail.

Figure X shows an alternateconstruction for mounting the roll bearings and rolls.-

. Figure XI is a partial cross section along lines-XI-XI of Figure X.

Referring: to the numerals of the drawings; like numbers illustrate corresponding parts. 1

The drier is constructed of substantially" duplithe cated'. sections throughout the length of the drier,

and: each. section. made mostly of duplicated parts. Of these sections, I indicates the outer vertical channels, and 2 the horizontal roof beams connect: the tops of the verticalchannels Ld-isposed on. opposite sides of the drier. Intermediate vertical angles 3, are. in pairs: back to back on each side of the drier frame: and extend fromthe. roof beam 2 down to andconnected with. the. horizontal channels 4 which extend from near: the: bottom of plate 5- on one side of the drier tothe: plate: 5- on the opposite side of the driernear its bottom end.v The vertical. channels: are attachect respectively to the vertical plates; 5' which are attached: to-the: vertical. angles 3 by the connecting straps 8;, andito the horizontal channels l-by thegussetsfli.

A series or: horizontal bearing plates: l I, extend longitudinally between: the vertical. angles: 3- trorrr one section. to another; on each side of the drier. They haveopenihgs; 80 for receiving the bearing. housings 1'0, whichopenings are large enough for the bottom rolls E6 to pass; through; them,'. when the bearing housings I0 are removed.

Longitudinal. bottom. frame: angles: li2'l are attached to the bottom end; of the vertical: channels I and vertical plate s5 and; extend the full length. on; eacirside of the drier,vv and. rest upon, Without attachmentto, the filler strip I13. the full length of the drier; These filler strips. I-3i are bolted. to. the ground or floor through the longi-- tudinal floor angles I5" which extend the full length of the driers and which, with the filler strip I-3;,. comprise: a. track on which the frame angles t2 slide when'longitu'dinali expansion and contraction of the. drier occurs. 'lihefiller. strip is and the: floor angles t5 are anchored by flat head countersunk: machine bolts. 14. in the anchors: l 6- which: are: preferably set into the'concrete' floor or ground. Transverse clearance between the angles I2 and I5 is small and drier expansion: or contraction .occu-rswithout. causing mis-ali'gnmentofi the drier frame, and the consequentfeeding of work to one. side or the other as it passes throughtheadrierl 7 Thesbearing plates lrlf are bolted to the verti'cal' anglesfi employing bolts: which closelyfit the holes; Alt longitudinal frame members mam-d.- ing the. bearing. plates H are carefully made, ac-- cur'ateirr lengthgand are mounted in suchmanner: that both: sides or the drier frame expand and contract equally, when heated and cooled. The bearing plates H are: made indifferent-, lengths, some one: sectioirin length. and some two sections in: length; The bearing plates: are mounted instaggered: relationship considering thesame deck oirth'e two sides oi'th'edrier and, in staggered vertical angles, on each side of the drier.

and one side of the drier being longer than the other. It is essential that both sides of the drier be of equal length to insure the veneer passing through the drier, in a straight line, and not creeping to one side as itpasses between. the

rolls through the drier. By' staggering the lengths of the bearing plates and squaring up the the transition ducts 45 and discharge the atmosphere into the duct 43 which is bifurcated at the end opposite the fan, and the atmosphere passes through two banks of reheaters 48 and is discharged through slots 49 in the two manifold doors 50 back into the drier.

The duct panels 32 and the roof panels 3! are similar in construction. They have an inner frame M to prevent the panel from being crushed when walked upon. The panel is imperforate on M the inside surface so that no moisture can enter it from the inside of the drier. The panel is ...not sealed tight on the outside surface due to drier frame it would be substantially impossible for one side of the drier to be longer than the other or for the rolls to be at any other angle than right angles to the :bearing. plates, on eachside of the drier, of course,.considering thatfthe bearing plates were fabricated withrthenec'essary uniform spacings of holes:for attachmentto the vertical angles. 1 I v.

Top angles 18 extendlongitudinallyron each Side of the drier, connecting the ends of horizon;

tal roof beams 2 and the plates 5 on .the two .outer edges of the drier. These angles 3 supportithe longitudinal roof angles which confinethe' outer edge of the panels of the drier. v

I provide a centeranchoriinear the'center, one anchor 'on'each' side of the drierxti'Eachanchor is attached to ahorizontal channel [and to the ground or floor so that creep'due to longi tudinal expansion or contraction of the .drier frame occurs in twodirectionsfrom thislanchor. Door seals 23 are bolted tothe inner side of and near the edge of the vertical plates 5' and of the longitudinal angles i 'l 2 and I 8 throughl the strap 24 which provides a backing for the door seals23. Doors 26 are made of insulated metal panelsf imperforate on the inside. as "illustrated'in Figure IV. They are carriedby hinges 21,1and arefastened by latches 28 on'thedoor andcatchesl 29, attached to the vertical angles: L." The latches 28 are attached:to the doorinner frame 30 from the; outside surface of the door onl'yand no bolts extend through inner surface of the P nel 25. together of structural "steel shapes towhich the' hinges'and latches are attached through the outside metal surface .only of the door. .The metal sheet covering theinside of the panel isseamless, and is bent over the frame 30 forming seams on the outside surface only which permits moisture to escape or enter the panel only from theouteror colder side.

The roof of the drier is covered by panels 3| which. rest uponthe horizontal roof be'ams l each end of the' drier suckidrier atmosphere:

through the suction manifolddoors 44 through The door frame 30" is rigidly welded cracks or bolt holes so that any moisture in the insulation material can escape when the panel 31 is heated, and thus prevent corrosion to the inner surfaces of the metal panels. 'The corners are weldedtight and the outer edge may be seamed. Some of the panels have bars 38 attached to the panel frames 4! in such position that cap screws 35'can be screwed into the bars 38 from the outside surface of the panels. Here the duct panels 32 are attached to the roof panels 3| by means of a strap 39 which is spot welded or otherwise attached to the edge of the anels 3! or 32. The cap screws 35 pass through the strap 39 and into the bar 38 of the roof panel adjacent to it. A gasket 60 is'placed between the edge of the duct panelstrap 39 and above the bar 38 of the roof panel to insure tight closure whe the cap screw 35 is tightened.

The atmosphere recirculating system at the green end preferably sucks atmosphere from the green end of the drier and discharges it to'the center through reheaters 48. The fans -42'at the dry end suck atmosphere from the dry end and discharge it through the reheaters 48 to th center of the drier. Stacks 53 are provided with dampers 54 and may vent excess drier atmosphere from the recirculation duct before it passes across the reheaters 48.

Bearing housings 10 are inserted into the openings in the bearing plates H and are'attached to :the bearing plates by two'cap screws 33. V The bearing housings l0 have'a shoulder,

which fits snugly into the opening of the bearing plate II; The opening 80 of the bearing plate is large enough to permitthe roll 66 to be passed through it at will by removing'the bearing housenough to accommodate loose rollers 73 on which the gudgeon shaft 68 rotates. ends of the bearing. housing 13 holds the rollers 13 in the bearing and retains lubrication'which is injected by' an Alemite gun through the Ale mite fitting H and oil hole as illustrated in' Figures IX and X.

The top rolls 6'! have gudgeons :68 in their ends and lay in a semi-loose position directly on top of thebottom rolls 66 so that the bottom roll and top roll are a pair driven in opposite directions of rotation for conveying the work through the drier. The bottom roll 66 is driven about a fixed axis by a sprocket I7 and chain [9 on one at oneend of the top and bottomrolls are inter-' The bearing housings are bored out large A cap 22 on the tate "aboutia'variable' axis, said bearing plates having a series of openings for .the accommodae 'tion of said bearing housings, said openings being largerrthansthediameter of said bottomgrolls,

whereby saidbearing housings and bottom rolls may be removed from the drier Without removing saidzbearingplates. r

3. In a; drier of the classdescribed, a s'ectional drier framejoperatively mounted on a drier foundation, said frame comprising vertical members on each side of said drier, a plurality of horizon.

taLapertured bearing supportaextending longitudinally betweenvertical members on each side of said frame, a plurality of decks in said drier each comprising a series of. operatively mounted supports for the gudgeon'shafts of. said bottom rolls, said apertures beinglarg'er ,indiameter than the diameter of said I011S;1sa'i,dbearing housings having guides for the shaftsof said top rolls permitting them to rotate about a variable ams'said bearing supports having means for attachment of said bearing housings, whereby said bearing housings an rolls may be removed from the drier without removing said bearing sup-' p01ts.-- ct V r 4. In adrier of the class described, asectional drier frame operatively mounted on a foundation, said frame comprising in part vertical members on each side of said drier, a longitudinal bottom member on each sideof said drier to which the vertical members are attached, horizontal members connecting said vertical members at their top and near their bottom ends, other vertical members on each side of said drier attached to the horizontal membersa plurality-of longitudinal bearing plateson each sideof said frame mounted on said second named vertical members, someof said plates extending one section long between said adjacent *vertical membersand others extendinga plurality of sections long, said bearing-plates being staggered in.length with other bearing plates onthe drier'irame, a track attached to the foundation, said. bottom. member resting on said track and;aligned byvit, and an anchor for said frame on each :side of thedrier near the center of said frame.

5. In a drier of the class described, a sectional drier frame operatively mounted on :a foundation, said frame comprisingzin part 'vertical members on each side of said drier a longitudinal bottom angle on each side of said-drier to which the vertical members .are attached, horizontal members connecting said vertical members at their top and near their bottom ends other vertical members onleach side of said drier attached to the horizontal members, a plurality ro11s,'said bearingshousings having guides for the shafts of; said top? rolls ermitting them to 'ro-.

of-longitudinal bearing plates on each side of said frame mounted on said second named vertical members, some of said plates extending one sectionlongand others extendingtwo sections long,

between-adjacentvertical members said bearing plates being staggered in length, with other bearing plates of the drier frame, a track attached to the; foundation, said bottom member resting on said track and aligned by it, and an anchor for said; frame on each side ofthe drier nearv the center of said frame.

(is-Inajroller drier of the class described, a drier frame; a series of longitudinal bearing plates attached to said frame, some of said bearing plates being staggered in placement with other ,of said bearing plates, detachable bearing housings, said bearing plates having a series of openings for the accommodation of said housings, each of said housings havin a circular portion which fits into the openings in said plates, top and bottom rolls 'operativelymounted to rotate in opposite directionsgudgeon shafts in said rolls, theshafts of said bottom rolls being mounted in the bearing'housings, said openings being big enough for passing said bottom rolls through them, and saidbearing housings having guides for theishafts of said top-rolls permitting them to rotate about variable axes.

7. Inaroller'drier of thelclass described, a

drier frame section, comprising vertical members, a. series of substantially'horizontal bearing plates attached to saidmembers, demountable bearing housings, said bearing plates having a series of substantially uniformly spaced openings for-the, accommodation of. sai bearing housings, said housings having rshoulders which fit into the openings in said plates, top and bottom rolls in pairs operatively mounted for rotation in opposite directions, gudgeon shafts in said rolls,

40 the shafts of said bottom rolls being mounted in said bearinghousings, and said openings being big enough for passing one of the said bottom I rollsthrough them. r

r .8. In a drier of the class described, a sectional drier frame operatively mounted on a foundation, said frame comprising in part vertical members on each side of said drier, a longitudinal bottom angleon each side of said'drier, to which said vertical members are attached, horizontal members connecting said vertical members at their top and near their bottom ends other vertical angles on each sidev of said drier attached to horizontal members, alplurality of substantially horizontal bearing supporting members, on each side of said-frame mounted on said second named near the center. of said frame.

ARTHUR H. BECKLE'Y, JR. 

